Hewlett-packard Development Company, L.p.

Mark D Tupa

Michael R Durham

Christopher Rijken

Gregory P Ziarnik

Louis B Hobson

Joshua N McMahon

Robert C Brooks

Stephen J Higham

Jim Paikattu

A first controller can provide system state information and a second controller can receive the system state information. The second controller can be programmed to control the state of a component. The state of the component can be based on information programmed in the second controller and the system state information. The component can include an off state and an operating state indicated by a signal from the second controller.

Controller

A computing system can include a monitor () to estimate a temperature of a storage device (). The monitor estimates the temperature from an activity indicating signal of the storage device. A cooling device controller () can be connected to the monitor. The cooling device controller can control the output of a cooling device ().

Cooling device control

An electronic device () includes a network interface controller () and an input/output controller () having a link layer. A portion of the input/output controller is configured to be powered off during a lower power mode of the electronic device, where the first portion contains the link layer. Wakeup logic () separate from the input/output controller receives a wake indication from the network interface controller in response to the physical layer receiving a wake message on the network while the electronic device is in the lower power mode. The wakeup logic activates an indication to awaken the electronic device from the lower power mode in response to the wake indication from the network interface controller.

Providing wakeup logic to awaken an electronic device from a lower power mode

An example method comprises activating a computer power-on button and releasing the power-on button when the computer begins to energize; reactivating the computer power-on button a second time within a predetermined time period from the first activating step; and sensing the reactivating step with the predetermined time period and initiating a command to enter a BIOS pre-boot routine instead of booting to the computer operating system (OS). The command to enter the BIOS pre-boot routine is initiated before activation of a computer keyboard.

Apparatus and method of accessing a computer pre-boot routine before activation of a computer keyboard

Managing audio of a device including transmitting a signal through a port of the device in response to an audio device coupling to the port, initializing an audio mixer of the device in response to detecting the signal, and configuring the audio mixer to manage audio transferred between the device and the audio device.

Audio mixer

A system contains a temperature sensitive device and a printed circuit board. The temperature sensitive device is coupled to the printed circuit board. An aperture is cut out of the printed circuit board between the temperature sensitive device and a heat generating device to act as an insulator for the temperature sensitive device.

Insulating aperture in printed circuit boards

A computer system includes a processor and a fan operative to provide cooling airflow for reducing a temperature of the processor, the fan having a temperature threshold corresponding to operation of the fan at a speed greater than low speed. The computer system also includes a temperature-monitoring unit selectively operative in one of a reduced-acoustic mode and a normal-acoustic mode such that in the normal-acoustic mode, the temperature-monitoring unit attempts to control the temperature of the computer system by adjusting the speed of the fan and in the reduced-acoustic mode, the temperature-monitoring unit attempts to control the temperature of the computer system by throttling the processor.

Computer system with a fan and a temperature monitoring unit

A computer system including a processor and a fan. The computer system can determine a power usage of the computer system and throttle the processor if the power usage corresponds to operating the fan at an increased acoustic level. The processor is throttled to cool the computer system prior to operating the fan at the increased acoustic level.

Computer systems and related methods for cooling such systems

Methods and systems for cooling computer systems, in which the computer system has a processor and a fan. An exemplary method includes: determining a temperature threshold for operating the fan at greater than low speed; determining a temperature of the computer system; and throttling the processor if the determined temperature corresponds to the temperature threshold for operating the fan at greater than low speed.

Disclosed are systems and methods for determining when a heat sink is installed. In one embodiment, a system comprises an electrically-conductive heat sink retainer clip that is adapted to maintain contact between a heat sink and a heat-producing component, the retainer clip further being adapted to electrically connect to ground, and a heat sink detection circuit adapted to provide voltage to the retainer clip, the heat sink detection circuit being configured to provide a logic value that indicates one of presence or absence of a heat sink.

Systems and methods for determining whether a heat sink is installed

An electronic system has at least two fans such as a first fan and a second fan. The first fan is controlled (e.g., on/off, speed) in response a system parameter (e.g., temperature, system operational state). Preferably, the second fan is controlled dependent on the operation of the first fan. The electronic system may be a computer system. In this case, the first fan preferably is a CPU fan and the second fan is a chassis fan.

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Cypress, TX, United States of America

Mark D Tupa